Succulent (IMAGE) Smithsonian Tropical Research Institute Caption The findings of this study indicate that bioengineering drought-resistant plants may not be as easy as some scientists have proposed. Credit Jorge Alemán/Smithsonian Tropical Research Institute Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. License CC BY-NC Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.